Communication method for encrypted equipment and unencrypted equipment hybrid networking

A technology of equipment mixing and communication methods, which is applied to the usage of multiple keys/algorithms, public keys for secure communication, and devices for branch offices to provide special services, etc., which can solve the problems of high security risks, high upgrade costs, and low transmission efficiency, etc. question

Inactive Publication Date: 2010-09-15
CHINA IWNCOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a communication method for mixed networking of encryption equipment and non-encryption equipment, so as to overcome the technical problems of the existing communication methods, such as large security risks, high upgrade costs, and low transmission efficiency

Method used

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  • Communication method for encrypted equipment and unencrypted equipment hybrid networking
  • Communication method for encrypted equipment and unencrypted equipment hybrid networking
  • Communication method for encrypted equipment and unencrypted equipment hybrid networking

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Embodiment Construction

[0080] The node N (Node) in the present invention refers to a user terminal STA (STation) and a switching device SW (SWitch) in a wired LAN. Physical layer devices such as hubs in the LAN are not treated as nodes. Switching equipment SW is divided into encrypted switching equipment ESW (Encrpytion SWitch) and non-encrypted switching equipment CSW (Common SWitch), in which encrypted switching equipment supports data link layer encryption and decryption and authentication mechanism; non-encrypted switching equipment is widely used in the current local area network General switching devices only have switching functions and do not support data link layer encryption and decryption and authentication mechanisms. User terminal STA is divided into encrypted user terminal ESTA (Encrpytion STAtion) and non-encrypted user terminal CSTA (Common STAtion), in which encrypted user terminal supports data link layer encryption and decryption and authentication mechanism; non-encrypted user te...

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Abstract

The invention discloses a communication method for encrypted equipment and unencrypted equipment hybrid networking, which is characterized in that: all unencrypted switching equipment directly forwards all protocol packets and user packets in the network, and all encrypted switching equipment adopts the following three steps to process the protocol packets: seeking father encrypted switching equipment, identifying and establishing a unicast key, and establishing a key between nodes. The communication method for encrypted equipment and unencrypted equipment hybrid networking has the advantages of solving the technical problem that the communication method in the prior art is large in potential safety hazard, high in upgrade cost and low in transmission efficiency, realizing the compatibility of the encrypted equipment and the unencrypted equipment, simultaneously ensuring the secrecy transmission of a data link layer of a local area network, and realizing the unencrypted communication between the traditional nodes, and the secret communication between the encrypted equipment.

Description

technical field [0001] The invention relates to a local area network communication method for mixed networking of encryption equipment and non-encryption equipment. Background technique [0002] The wired LAN is generally a broadcast network, and the data sent by one node can be received by other nodes. All nodes on the network share the channel, which brings great security risks to the network. 802.1AE is a data link layer data encryption protocol researched by IEEE to protect Ethernet. This protocol adopts hop-by-hop encryption security measures to realize the safe transmission of data between network nodes. The switching equipment in this protocol has the ability to encrypt and decrypt. It is used to decrypt the encrypted data packet of the Ethernet data link layer, then encrypt and forward it, so as to ensure that the data packet of the data link layer is transmitted in the network in the form of cipher text. [0003] There are two main problems with this protocol: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/14H04L9/30H04L12/56H04L12/18
Inventor 李琴曹军铁满霞黄博
Owner CHINA IWNCOMM
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